Printing-telegraph receiver



A. F. DIXON. PRINTING TELEGRAPH RECEIVER. APPLICATION FILED MAR.20. l9l4. RENEWEDIEB. I6. 1915.

Patented Aug. 15, 1916.

3 SHEETS-SHEET I.

W e/170w. Amos f 00mm A. F. DIXON. PRINTING TELEGRAPH RECEIVER. APPLICATION HLED MAR. 20, I914. nzmzwzo my. l6, m5.

Patented Aug. 15, 1916.

3 SHEETS-SHEET 2.

Ml/finessess //7 venfam' A. F. mxow'. PRINTING TELEGRAPH RECEIVER. APPLICATION FILED MAILZO. I914- RENEWED FEB. I6. I915.

Patented Aug. 15, 1916.

3 SHEETSSHEET 3.

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OFFMJE.

AMOS F. DIXON, OF NEWARK, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO WESTERN ELECTRIC COMPANY, INCORPORATED, A CORPORATION OF NEW YORK.

PRINTING-TELEGRAPH RECEIVER.

menses.

Specification of Letters Patent. Patgnted A 111g, 15, 1911 Ii.

Application filed March 20, 1914, Serial No. 825,996. Renewed February 16, 1915. Serial No. 8,619.

'. graph Receivers, of which the following is a full, clear, concise, and eXact description.

This invention relates to printing telegraph receivers and more particularly to receivers wherein the characters may be simultaneously produced in two different forms.

One of the objects of this invention is to produce an improved receiver of the above type which is simple in construction and reliable and eflicient in operation.

A further object is to produce an improvedacoiitrolling system whereby one of the reproducing mechanisms may be rendered operative and inoperative at will.

To the above ends, in combination with improved type and punch selecting mechanism, there are provided circuit preparing and completing devices whereby the actuation of the punching mechanism may be controlled. i

The above and other objects of this invention will be fully set forth in the following description and claims, and will be more readily understood by reference to the accompanying drawings in which I Figure 1 is a perspective showing'the preferred embodiment of the invention arranged for simultaneously printing characters and perforating a paper tape; Fig. 2 is a plan of a modification of the tape perforating portion of the apparatus; Fig. 3 is a cross-section taken on the line 3-3 of Fig.

2; Fig. 4 is a cross-section taken on the line' 41-4 of Fig. 3; Fig. 5 is a cross-section taken on the line 5-5 of Fig. 3; Fig. 6 is a diagram of the system of circuit connections for causing, and controlling the operation of the preferred embodiment of the invention, and Fig. 7 is a similar circuit diagram adapted to .the modified form of the invention. I

Similar i ters of reference refer to simi-' lar parts tli 'oughout the several views.

The tape perforating mechanism or punch block is similarly constructed in both the preferred embodiment and the modification, and cc-nsistsof the following parts: A frame or housing 11 having uprights 12712 on angle 5 zip-piece 17. These springs are for the purpose of returning the punches to normal position after the punching operathe base of the frame 11 is an electromagnet 18 having an armature 19-pivoted upon a shaft 20, which is held in pedestal bearings 21, 22. The uprights 12, 12 furnish bearings for a shaft 23 and the shafts 20 and 23 are joined by a suitable coupling 24. Beneath the punches 14 and 15 is a punch operating member which consists of a hardened head 25 carried by a lever 26, which is securely mounted on the shaft 23 to rotate therewith when the electromagnet 18 attracts its armature 19. A suitable spring (not shown) may be provided to return the armature to normal position after the deenergization of the electromagnet 18.

Each of the character punches 14 has an associated lever 28, the free end of which may be projected between the corresponding punch and the striking head 25 so that when the electromagnet 18 is energized, the corresponding punches will be driven'through a paper tape 29. The feed punch 15 is of sufficient length and so located as to be struck and driven through the tape upon every advance of the striking head 25. The levers 28 are pivoted at 30 to a second set of levers 31 which are pivoted between the extensions 32, 32 integral with the uprights 12, 12. Thejopposite ends of lovers 31 are joined at points 10 in the preferred arrangement, shown in Fig. 1,, to links 33, and in the modification, shown in Figs. 2, 3, 4 and 5, to links 34.

The shaft 23 carries, besides the lever 26, an arm 35 upon which is pivotally mounted a feed pawl 36. This pawl is adapted to engage the pins in the circumference of a tape advancing wheel 37 which is mounted upon a shaft 38 supported in bearings in the 4 guide, member 13. A spring 39 secured to 'tion has been performed. Mounted upon engage with the holes in the tape 29, which are punched by the feed punch 15 at every encrgization of elcctromagnet 18, and upon the decriergization of electromagnet 18 advance the tape to present an unpunched areafor a succeeding punching operation.

Referring now to the modified form ofthe invention, as shown in Figs. 2, 3, 4 and 5,

the mechanism for selecting combinations oflevers 23 to be interposed between the corresponding punches 14 and striking head 25, for perforating corresponding holes in the tape, consists of five "electromagnets These magnets are provided with armatures $7, the free ends of which are joined each one to a link 34. The energization of any one or a combination of magnets 45, as'hereinafter described, will attract the corresponding armatures 4:7 and consequently cause'the projection of corresponding levers 28 between corresponding punches 14 and the strikinghead 25 for perforating the tape.

Referring-now more particularly to the right-hand portion of Fig. 1, the production sponding selecting disks 48 to 52.

of a similar selection of levers 28 is accomplished by having the links 33 attached directlyto selecting disks 4:8, 49, 50, 51 and 52. These disks-constitute part of an apparatus capable of printing the message in page form, only enough of which has been shown to give a complete understanding of the operation of selecting the desired characters. The five electromagnets 54 to 58 inclusive are conveniently placed around the selecting disks 48 to 52 inclusive and have their air-matures 59 connected each one, by means of a link 60, to a corresponding disk. Electromagnets 54 to 58 are adapted, when energized, as hereinafter described, to attract their respective armatures 59 and thereby cause a slight rotation of the corre- It is evident then that, by the energization of va-v rious combinations of these electromagnets, corresponding levers28 are selected and interposed between punches 14: and head 25 to produce corresponding combinations of holes in thetape 29. These electromagnetsalso serve to select thecharacters to be printed in page form from type wheel 53 carried by a rotatable shaft 61-. Type wheel 53 has two means of any suitable motor mechanism (not shown), which causes it to tend to rotate in the direction of the arrow of Fig. 1. Normally, however, shaft 61 is prevented from so rotating by a stop 66 engaging the teeth of aratchet 67. The selecting disks 18 to 52 are each provided with a series of notches 62, two of such series only being shown in the drawing, but there should be one notch in each disk corresponding to each vertical line of characters carried by the type wheel, and in addition, one corrcspmuliug to each. of the other selecting operations to be pcr foru'ied by the ap mratus,v such, as cutting in and out of the perforating mechanism, spacing, feeding, etc. Before each of the vertical lines of notches 62. corresponding to a character to be printed, is positioned a pivoted spriug-tensioned typ selecting lever 63 which is adapted, under certain conditions to be hereinafter described, to engage with a contact arm 6 L carried by shaft 61. Before the vertical lines of notches 62 representing other operations than the selection of characters are also positioned spring-tensioned levers which are adapted to control circuits whereby the proper electromagnetic devices for performing such desired functions are energized. Two of these levers are referred to in Figs. 6 and. 7 by the reference characters 127 and 146. The notches 62 are so located that, a combination of selecting disks being slightly rotated by the energization of the corresponding electromagnets,

circular-shaped ends 7 O of the lever 68 en gage and hold the selecting levers 63 depressed under the tension of a spring 71.. A release magnet 72 acting on the armature 73 forming part of lever 68, however, when onergized, elevates the ends away from the centrally projecting portions of the selecting levers 63. The particular one of said levers 63 having a complete vertical line-in front ,of its vertical shank w1ll therefore move sufficiently to initiate the performance of the desired functions. The character is thereby presented to the printing platen, which may be any well known electromagnetic device having a hammer adapted to press the paper against the type wheel. If any of theoper- ,ation selecting levers 63 had been operated, it would not have caused the. selection of a character, but the closingof contacts to set in motion the proper electromagnetic dev1ces for spacing or feeding the paper,-or accomplishing any other desirable operation.

The apparatus and system may be understood by the following detailed description of the operations necessary for receiving and reproducing a character in printed and perforated form. Fig. 6 shows a circuit which may be used with the preferred embodiment of the invention as shown in Fig. 1, and by referring to these twofigures it will be shown how the selection of a particular character and the cutting in and out of the perforating mechanism are controlled from the sending end of a main line L. i

The sending apparatus at a distant station may be assumed to send various combinations of five positive and negative impulses. These impulses arrive over a main line conductor L and pass to ground through the windings of a polarized relay 74 which is energized by positive current to connect battery 75 to conductor 76. Conductor 76 is connected to a conducting ring 77 of a current distributer 78, which is divided in four equal parts, only one of which is shown connected up to areceiving instrument for' the sake of clearness. The distributer 78 is provided with a rotatable arm 79 whiohis driven in the direction of the arrow by any suitable source of power. The arm is provided with a pair of insulated contact brushes which are adapted to successively unite a series of commutator segments 80, 81, 82, 83 and 84 and the conducting ring 77. Therefore, when the received impulses are positive, battery is connected to the corresponding conductors 85, 86, 87, 88 and 89 and lastly, battery 90 is connected through segments 91, 92 to conductor 93. The conductors 85, 86, 87, 88 and 89 are connected, respectively, to intermediate relays 94, 95, 96, 97 and 98, each one of which is provided with an armature permanently connected to one of the selecting magnets 54, 56, 57 and 58 by conductors 100, 101, 102, 103, and 104 respectively.

Let it be assumed that a character is to be selected by five impulses combined in the following order: positive, negative, negative, positive, negatlve. Upon the reception of the first positive impulse, the brushes on arm 7 9 of the distributer 78 connect the con ducting ring 77 with the segment and a circuit is thereby established from grounded battery 75, conductor 76, ring 77, segment 80, conductor 85, relay 94, conductor 107, a release control relay 108, conductor 109, back contact and armature of clear-out relay 110 to ground. Relay 94 thereupon attracts its armature 105, establishing an enercauses the attraction and the holding of its armature 59 and a corresponding movement of disk 48 through the lever 60 takes place. The second and third impulses arrive over the main line L, while the brushes on arm 79. pass over segments 81 and 82, respectively, but being of negative sign cause the armature of polarized relay 74 to rest against its inactive contact, and battery 75 is therefore not connected with relays 95 and 96; consequently, selecting magnets 55 and 56 and their corresponding disks 49 and 50 remain inactive. The fourth impulse being of positive sign causes a reversed action of the polarized relay 74 which connects battery 75 to conductor 76, while the brushes on arm 79 connect ring 77 with segment 83. A circuit is therefore completed from grounded battery 75, conductor 76, ring 77, segment 83, conductor 88., relay 97, conductor 107, release control relay 108, conductor 109, back contact and armature of clear-out relay 110. to ground. Relay 97 attracts its armature and closes an operating and holding circuit from grounded battery 112, selecting magnet 57, conductor 103, armature, front contact and coil of relay 97, conductor 107, release control relay 108, conductor 109., and to ground at back contact and armature of clear out relay 110. The closing of this circuit causes the selecting magnet 57 to move its corresponding disk 51. The fifth impulse arrives over the main line L while the brushes on arm 79 pass over segment 84, but being of negative sign, no current will flow to energize electromagnet 58. The selecting relays 94 and 97, the release control relay 108 and selecting magnets 54 and 57, remain energized and the movement of their respective disks 48 and 51 causes the presentation of a continuous vertical line of notches 62 before the selectinglever 63 corresponding to the positioning of a certain character upon the type wheel 53 before the printing platen.

After the brushes of arm 79 have passed by the segment 84,'it passes over and unites segments 91 and '92, thereby causing a circuit to be established from grounded battery 90, segments 91, 92, conductor-'93, front contact and armature of release control relay 108, conductor 114, release relay 116, conductors 117 and 109, back contact and armature of clear-out relay 110 to ground. Release relay 116 attracts its armature, closing an operating and holding circuit for the release magnet 72 as follows:grounded battery 120, release magnet 72, conductor out relay 110. The energization of release magnet 72 causes the movement of release lever 68 against the tension of spring 71., which removes the ends 70 from engagement with the inner ends of all selecting levers 63, whereupon the selecting lever 63, before n which a continuous vertical line of notches 62 is presented, raises its,centrally projecting end into a position to engage the arm 64 carried by shaft 61. The shaft 61 is then released by the removal of the pawl 66 from .ratchet wheel 67 by means of any suitable electrnnagnetic device and circuit arrangement, The shaft 61 thereupon rotates in the direction of the arrow until the arm 64 "strikes the elevated end of the selecting lever 68 at whichtime the assumed character is presented in front of the platen in position to'be printed. The energization of release .relay 116, closes through its front contact a circuit connection for the perforating mag net 18, which may or may not be effected;

depending upon Whether or not it is desirable-to have the message reproduced. in punched tape form. Assuming at present that such a performance is not desirable,

only the printing of the selected character will take place as follows: Upon the engagement of lever 63 and arm 61, a circuit is closed from grounded battery 122, clear-out relay 11'0, conductors 123 and 1241, the printing magnet 125, arm (i=1, lever 63 to ground at 126. The printing magnet is then energized and the printing is effected. Clearout relay 110 is also energized and removes the ground from conductor 109, whereupon the apparatus is released to normal in the following manner: The ground connection being removed, asstated, from the release control relay 108, the release relay 116, relays 94.- and 97, the selecting magnets 54 and as 57 and the release magnet 72 are allowed to return to normal. The returnof the 're lease lever 68 depresses the elevated end of the connecting lever 63 andbreaks the contact between lever 63 and the arm 64:, thus removing the ground connection. for: the printing magnet 125 which, togethea withthe clear-out relay 110, returns to normal.

Assuming now that it is desirable to connect the perforating mechanism to the ap- 56 paratus for the simultaneous recording of the message in bo-"h printed and perforated -form, a series of nnpur.

is first sent over main line L to elect the selection and operation of the selecting lever 127, which prepares the apparatus -i'or the operatiim of the perforating mechanism. These impulses have the same eiiect as those tor selecting a type selecting lever wit; die difference that the printing magnet 125 is not eneras gized and thetype shaft 61 is not released.

The lever 127 having been thus selected, establishes a circuit connection for relay 130 as follows: from grounded battery 122, clearout relay 110, conductors 123, 131, contact 132, lever 127, left-hand coil of relay 130 to ground. Relay 130 is then energized and provides a locking circuit for itself from grounded battery 133, armature and back contact of a relay 134, conductor 135, right hand frontcontact,armature and coil of relay 130 to ground. All parts are then released to normal due to the euergization of the clear-out relay 110, the same as in the selection of a. character. It will be noted, however, that the relay 130 remains locked up and the perforating mechanism is now permanently cut in so that any subsequent selection will be produced thereon in the form of a punch tag't-e. This perforation of tape is accomplished through the medium of the selecting disks. These disks lire, as previously stated, selected in various combinations and caused to interpose corre sponding levers 28 between corresponding punches l4 and the striking head 25, through the medium of levers 33 and 31. selected punches will, then be driven through the tape when the magnet 18 is energized. This magnet 18 is energized every time a selection of a character is performed through These 7 137 magnet 18, front contact and armature 138 of release relay 11G, conductor 139, armature 110 and front contact of relay 130 to ground. I j Should it he desired todisconnect thC perforating mechanism, a combination of impulses is sent from the distantstation over main line conductor L to operate the selecting lever 14:6. The selection of this lever 116 causes the contact 1&7. to be closed to ground and a circuit established from grounded battery 122, clear-outrelay 110, conductors 123, 131 and 1 18, relay 134, contact 147 and lever 146 to ground. This circuit energizes relay 134 and breaks the locking circuit through its back contact and arn'iaturc of relay 130, which is then deenergized and removes the ground from 0011- ductor 139, which as stated above determine whether or not the magnet 18 will be energized.

The system of connections shown in Fig.

7 ,is adapted to be used in connection'with the modified perforating mechanism shown in Fig 2, 3, and 5. lits operation is sub stantially the same as that of the systeinof F 6, except for the selections of the perforating mechanism which are made through the medium of the magnets 4-5, previously forating rep roducer 58 and is caused to project a corresponding lever 28 between the corresponding punches l4 and the striking head 25. The magnet 18 is operated in the same manner as in the system shown in Fig. 6.

What is claimed is:

1. A receivingapparatus comprising two sets of selecting men'ibers, apparatus for controlling said sets of members simultaneously, an operative instrun'ientality adapted to cooperate With one of said sets, means affected by the other said set for partially controlling the cooperation of said instrumcntality and its associated set, and an electro-responsive device controlled by said apparatus independently oi said sets for like ise partially controlling the cooperation of said instrumentality and its associated set.

2. In a telegraph receiver the combination of a plurality of selecting members, means for selectingcombinations of said members, a plurality of perforating punches, a plurality of punch selecting mechanisms controlled by said members, an operating means for said punches, a controlling circuit for said laperating means, contacts controlled by said members, means controlled by said contacts to partly prepare said circuit, and electromagnetic means operated by the selecting means for completing said circuit.

3. In a telegraph receiver, the combination of a plurality of selecting members, a perforating reproducer adapted to be prepared for operation by said members, an operating means for said rep'roducer, a con-- trolling circuit for said operating means, contacts therefor controlled by said members, to partly prepare said circuit, and an electroresponsive device for completing said circuit independently of said members.

4 In a telegraph receiver, the c0mbinatiolilof a plurality of selecting disks, a per adapted to be prepared for operation .with said disks, an operating means for said reproducer, a controlling cir cuit for saidoperating means, two ct contacts controlled by said disks, means controlled by one set of said contacts to partly prepare said circuit, independentmeans for completingsaid circuit, and means controlled by the other set of said contacts to open said circuit.

In a telegraph receiver, the combination of a plurality of selecting disks, a pcri erating reprcduccr adapted to be prepared for operation by said disks, an operating-.33 means for said rcproducer, a controiling circuit for said operating means, two sets of contacts controlled by said disks, a relay operated by one set of said contacts to partly prepare said circuit, means for completing said circuit, a locking circuit for said relay operated by the same set of eoi'itaets, and second relay controlled by the other set of said contacts to open the locking circuit the first mentioned relay.

6. In a telegraph ieceirer, the eond ination. of a plurality of selecting disks, n for selectingcombinations of said di (S, a perforating reproducer, means operated by said selecting means to prepare said itt ducer for operation, an operating; me said reproducer, a controlling circu. said operating means, contacts contra said disks, means controlled by s tact-s to partly prepare said cir means for con'n'ilctingi' said circuit 7. In a telegraph receiver, he combina tion of a plurality of selecting disks, means for selecting combinations a perforating reproduce-r, a ducer, means operated l' means tonoperating sa ducer, means operated b means to ,jn'epare said peiioratii due-er for operation, operating said reproducer, a controllii'igf ()iiCdll said operating means, contacts control said disks, means controlled by sai tacts to partly prepare means for completing aid circuit,

In witness whereof, I hereunto subscri my name this 17th day of irlarch .ll, 1

of said dis print CUM said circuit, and

Witnesses i EDLER, Naix'sa. E. 'l ofrintn 

